Frederic wm



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Rivet. I

Patented 'Aug. 14, 1847.

Witnesses: W @W grapher. wamn mn, u. c.

UNITED STATES PATENT OFFICE.

FREDERIG WM. WOOD, OF NEW YORK, N. Y.

RIVET FOR LEATHER BANDS.

Specification of Letters Patent No. 5,245, dated August 14, 1847.

To all whom it may concern:

Be it known that I, FREDERIC WILLIAM 001), of the city, county, and State of New York, leather dealer and stretchedleather-band manufacturer, have invented and made and applied to use certainnew and useful improvements in the mode of shaping and applying the heads and burs of rivets used in jointing the lengths of leather employed in bands for driving machinery by which the heads and burs are set flush with the faces of the band which thus becomes more effective and more lasting in use, and for which improvements I seek Letters Patent of the United States, and that the said improved mode of forming such rivets and burs and the effects in use are fully and substantially set forth and shown in the following description thereof, referring in succession to the figures shown in the drawing annexed to and making part of this specification, wherein,-

Figure l is a sectional elevation, with a plan beneath, of 'my improved rivet, shown as made with a conical, or countersinking form, next the shaft, so that the head is feather-edged; Fig. 2 is a section, with a plan beneath, of my improved bur, shown as beveled to a feather-edge, with a slightly conical hole, and slightly concave annular surface; the Fig. 3., shows in sectional form, one shape of the common rivet, with a flat head, and bur, and the Fig. 4 shows a saucer headed rivet, with a dished bur, of equal thickness; the Fig. 5., is a plan, showing the' forms assumed on the face of a band, by the clenohes, and burs, of each of V. the above rivets, and Fig. 6., is a section of the plans, showing the forms assumed, in the body of the leather, as well as on the face of,the band, by each description of rivet, abovereferred to, when it is completely in place for use; by the contrast thus shown, it will be seen, that when in use the heads and clenclies of the rivets Figs. 3.,

and 4., are above the line of surface of the band, which produces two injurious effects,

in use, one is, that the cohesion of a band on a drum is interrupted, by the interposing contact of the heads, or clenches, and a short jump, or slip, is caused, and at the same moment the band is slightly tightened, I

and concave faced bur, lying flush with the faces of the band, are free from these ob-' jections to the common forms of rivets, and

thereby produce 'a new and useful result, that the cohesion, and traction, of the band,

remains equal, through every part of the motion.

I do not claim to have invented the feather edged, or countersunk rivet head, as

that form is well known; but

I do claim as new, and of my own invention, and'desire to secure by Letters Pat ent of the United States,

The application of rivets, so formed in the head, conjointly with' a feather edged bur, having a concave or dished face, with a conical hole, to receive the clench, and finish the rivet flush with the faces, on both sides of the band, substantially in the manner, and with the effects, described and i i shown.

In witness whereof I have hereunto set my hand in the city of New York this nineteenth day of July, one thousand eight hundred and forty seven.

F. W. WOOD.

Witnesses:

W. SERRELL, .LEMUEL W. SERRELL. 

